woltmann



Juy 10, 1923.

.A Re.15,652 E. WOLTMANN OPERATOBZ'S OUTFIT FOR ELECTRIC WELDINGOriginal lFiled May l,l 1915 3 She'etsheet 1 fvenfor;

July l0,- 1923. Re. 15,652

E. WOLTMANN A OPERATOR'S OUTFIT FORVELECTRIC WELDING Original Filed May1,1915 SSheets-Sheet' 4 4 if@ fr 72 /4 6/ Y 5 52a g h/Zz www. In Uenor:

l25 Fig. 3

' UNITED STATES i 'i A n n-NST woLTnANmwor Nnw'Yoam'rN'; Y.

ornna'ronsoo'rrir ron Enncrai'c WELDING. l y

original in. meenemen/aa number-12, 191e, suini No. 25,179. mea nay i,ma. applicaties for,

relsaueled December'l, 1919. Serial No. 348,682.

To all whom it may concern: l Be itv known that 1,. ERNST WoL'rMANN,citizen ofthe UnitedStates, and resident o' New York,.i`nv the countyof' New York and 6 State of New York, have invented certain new anduseful Improvements in Operators Outfits for Electric Welding, of whichthe following is a 'cifcation The object o my invention is van opera- 10tors outfit or hand tool by means ofwhich an inexperienced operator mayrepair or join metal ortions y means of an electric are and we dingterminal means adaptedto Ydeliver molten metal to the arc which in 16turn carries it to the metal portion` to be welded or repaired soorganized as. to cause the arc to'have a` tixed'voltage and amperage andtherefore a fixed heat, to secure an even ow of' welding metal. 20 Inthe drawings:

Figure 1 is a side elevation of my hand l tool with a small portionbroken away.

Fig. 2is a bottom view of the c lip, a portion of which is broken` awayin Fig. 1.

1s aview bottom of the solenoid shown in Fig. Fig.. 4 is a detail. Fig.5 vis a side elevation partly in section showing further details.

Fig. 6 is a rear view with portions removed.

7 isa diagram of the circuits of my invention.

Fig. 8 shows a sectional elevationr of a line A A,

g5 preferred form of construction.'

Fig. 9 is ak plan view of same on Fig. 8.

In my operators outfit, or hand tool I employ a handle 1 which may ahollow'cyl- 4o inder of metal with a chased or engraved surface toenable the hand to grasp it easily without slipping. Within thecylinder` 1 is secured a solenoid 2 shown in Figs- 5v and 6. Thecylinder 1 is secured to the ends 3 and 5 4 of the vsolenoid magnet bymeans of screwsv 5 and 6. The 4solenoid is'provided with a windingcovering a spool 8, hollow to form a dash-pot chamber 10 to receive thevarmal ture o r core 9'of the solenoid which is adapt-- so ed vtoreciprocate sluggishly within the chamber 10. -The 'core 9 is linked bymeans of the lug 9 to the pin 9" secured to a plunger 9 operating in thechamber 10, said plunger e plunger inthe chamber 10, or such seep 1n ofair may be accomplished by such partlyin section of the' PAT-ENTFOiFICE.

and chamber forming a dash-pot, airbeing allowed to seep by the `plungerin slightA uantities because of intentional loose fit of ot er meansappurtenant to the'plunger and chamber as may be adapted for thispurpose, said plunger being of lcarbon orY graphite. This -renders theaction of the corev sluggish and overcomes its tendency underthe spring29 totremble or vibrate rapidly. The movable core 9 is pivoted to alever 12 shown in Fi`g. 1- which in turn is pivoted at 13 in the bracket14 which is secured to the bottom ange 4 of the solenoid spoolas shownin Fig. 6. This bracket is provided with a nut or other binding post. 15adapted to be connected with a main linei conductor for the purpose ofsupplying current thereto for welding purposes. n

.Upon the end of the lever 12 is secured a spring clip 16 more clearly.shown in bottom' y view in Fig. 2. This clip is composed ofthe block ofmetal 17 having'a tongue 17 adapted to lit the s lot 18 in'the end ofthe lever 12. A screw 19 passes through theend of the lever and bindsthe cleft portion upon the tongue 17 securely uniting' them ltogether.Upon theblock is also fixedly secured the clip member 20. This isstationaryand betweenit and the block is secured the spring 21 tendingto separate the clips. The other clip member 22 is loosely secured totheblock by means ofthe wing nut 23 and screw 24 means of the pin 25' fixedto the block and loosely passing through a hole in the clip 27. The clip22is electrically connectedv to the lever 12. by suitable means, such asthe flexible; stranded co per connection `13,'on e end secured under t eplate 13" fastened se- I .curely to the clip 2O and the other lend solderedto the block 13 secured by screws to the bracket 14.

The bracket"14 is hollowedout as'indicated by the broken line 28 so thatit will. contain the s ring shown 1in broken line 29, one end of w ich1s secured to a fixed pin '80 and is held from getting out of'positionby passing through the bracket and the other end of which is secured tothe end of a screw 31 which passes loosely-through the aperture 32 andthrough the heel of the lever 12 .shown at, 33 and then through a. thumbnut the .spring tension to the lever is such' that as the spring isstretched and its -tension increased the point of application approachesa line drawn from the pivot 30 through .the fulcrum, thereby reduc- 1ing the leverage effect of the spring upon 'the compensating lever..Suitable proportions will result in such a balance between the reductionof the leverage and the increase of the tension. Thus thev tension ofthe spring 29 upon the lever is not materially varied by the maximumvariation in position of the core` 9 of the solenoid. The core isiloosely fitted within the spool of the solenoid and the pivots 9al areloose to provide freedom of action for the core.

The spring 29 is so arranged as to dra-W the welding terminal means orpencil away from the Work. Thecore of the solenoid on vthe contrary isso arranged as to draw. the

welding terminal means or pencil toward the work.

The ,circuits are shown in Fig. 7. The main welding circuit may betraced from the Abinding post 36 by Way of the conductor 37 to thebracket 14 thence through the pivot'13 or connection 13a around the postto the lever.

12 and clip 22, and then through thewelding pencil 27 which is broughtsufficiently close to the Workv 38 as to form an arc. The current thenreturns by way of the conductor 39 to the source Vof supply binding post40. The

circuit or coil 7 of the solenoid is connected on one side totheconductor and on the other side to a push button switch 41 normally openbut adapted to be closed by the operators finger when he grasps the.cylinder 1, to establish a circuit through the .conductor 42 to aterminal means adapted to be connected temporarily to the work 38, Orasshown connected to the threaded member 43, which may be Vtemporarily`attached to the work 38, the purpose of suchv connecting means orterminal memberbeing to establish a shunt circuit to supply a current tothe coil-7 of the Solenoid. This shunt is carried across the arc fromone side of-thevcir cuit to the other.

It is open until the operator closes the switch41. This is a confAvenient thing to do since it is located upon the tool itself as showninFig. 1`. rIn this figure this switch is shown to be-composed of a clip44 connected as shown in Fig. 4 to the flexible conductor 45 Whichhrinturn is con* nected to the terminal '43 asv shownk Fig. 7. The otherside of this switch is composed of a clip or spring 46 block ofinsulating material 47 which is secured to the top of the solenoid andthe circuit is led from this clip 46 in two directions, one to thesolenoid as heretoforey described and the other by means of a conductor48 to the contact 49 of the buzzer thence through the coil 50 ofthebuzzer and the conductor 51 to a spiral spring 52 carryingv at its to acontact 53 adapted to come into electrica connection with the core 9 andthereby'establisha connection with the bracket 14 and thus enablecurrent to pass through the ybuzzer from the conductor 37 to the clip 46in shunt of the coil 7 of the solenoid. A

This circuit and buzzer are for the pur` pose of informing theoperatorthat his tool has beenbrought too close to the work and there is notsufficient room for the necessary variations of the welding terminalmeans by means of the solenoid. When the operator hears the signal orbuzzer, he lifts his tool slightly so that the-contact 53 and the core 9are separated and4 thereafter his welding goes on as before. ofparticular value iny thisyconnection since during the operation ofwelding the operator usually observes his arc through mounted upon thelAn. audible signal is smoked glass which is so dark that he is unable tosee much else. A signal which would be Yvisible Ordinarily wond be infvisible through the glass so that some other sort of signal is advisableto inform him when his tool is not held at the proper distance from thework. The contact v53 and the spring 52 are located upon a block ofinsulating material 54 which is sup-4 ported by posts 55 upon the bottomof the solenoid 4. The conductor 51 is shown in Figs. 1, 3 and 6. Thesefigures show how the conductor is concealed between the outside of thesolenoid coil vand within the cylindrical cover or handle 1. l

While, as has been stated, an audible signal is advisable, it should beunderstood that I do not restrict myself to an audible signal butthatthe signal may be of any kind suitable to give -warning to` theoperator, and adapted and arranged to become operative bythe 40o nearapproach` of the tool to the work.

The flanges 3 and 4.of the solenoid are through which the wire 5l isadapted to passin order that it may be concealed within the cylindricalhandle Upon the top of the solenoid is an insulating block 47 lprovidedwith slots or cut-out `portions 55 'shewn' in.- rig.. i.

' the top 'mechanism um' the bottom of 44 thereb 'and intr The upperrtion of this block is removed in Fi' 5 an' 6.. Uf ii of this blockwhich is accu p. the spool of the soleno'd in any" suitable way ismounted thebuzzer as shown iny Fig. 1 and Fig. 4. In Fig. 1 is showntheconnecting conductor 5 1 leading from a binding: post 56 upon. thebuzzer into theV solenoi handle" l: Figs; 5A and 6. This 52' and contact53.

spring 0 Thel vconductor from the other binding'post 5,8 'is'. shown' inFig. 4' and is carried' through the edgeof the block 47 and connectedvtothe clip 46 as shown. The spring cli also connected. to it asrshow-nin` ig. 4`y a conductor 59 leading to one endof the solenoidV coil 7 asshown at 59 in Fig. 5. j 'I fhe other endgof the solenoid coil" is'carried through the hole in the bracket 14 as shown in Fig. 6 endsecured by a proper bindingscrew 61' to the bracket. Surrounding the thef solenoid' is located the ollow cylinder 62 having suitable cut-out,portions 63 for thelever 12,

Spring- 46V has Y and 64 for the bracket 14. The cylinder is secured vto the bracket 14 b means of screwsl 65 to hold it in place. Be oreoperatiomthe weldin terminal means, or'pencil of metal 27, is ocatedbetween-the spring clips-- 2 0 and The welding terminal. means or theneil 2 7 'shown, 'mayfbe com' 'o'f Swe ish iron or any allo of steelthat may be desired, or any con uctive and .fusible metal or materialsuitable for .the purpose.

The operator grasps the cylinder l and with a linger pushes upon theinsulating piece rinl clip 46 vand 'presses it-int) contact 'with 1 espring clip c os - ucing t e solenoid 'into a normally open shuntcircuit adapted to be 'closed by .meansl of 'the terminal 43 to the work38.

When the latter connection has beenl estab# lished, theoperator-maybring the rwelding terminal means orv the vwork drawn. travels from thesource of supply 36 by ncil into contact with 38 in 'or er that an aremay wayof a conductor 37 to the'binding post 15 through the bracket 14to the'le'ver 12 to the welding terminal means or pencil 27,'

tothe workv 38, thence byway of conductor 39 to the other terminal 40.of the source of supply."jWhen the welding in bmiighijinw contact, arent terminal means from the solenoid rcircuit vof the welding term 5mlmeans thereby reduc' sive eect of the l ect of releasing-:the core 9somewhat sothat under the influence of the' spring 29 the theelectro-responwelding terminal means is drawn away from tte-:werkiieebfytmfing t are:

This is shown4 more clearly in conductor is connectedl i to the bindingpost 57 upon the block 54v which in turn is connected tothe spiralishown:iii-'Figs'.f` 8

*mounted to'. swingsabout the y y result of'this arranl ment' is thatas. the.

the pair of contacts41 solenoid Vwhich has the eflimitsl of motion o thecom' 91116 U19' strengthlof. the: solenoid'f and the tensionkoff,djiisted to each fot-lier l the' spring. 295- are so' a that when theaction; of drawing the are takes' place', the arc drawn: Ato the rightllength for welding-purposes; Itis' drawn rapidly and automatically sothatthelo rf-f ator A.ngo-trainingor. skill to enable iin-v toerfothis-rfun'ctienrproperly. e preferred formjofmy invention; is

thev lever andclip: whichV carry lever 1 2'y vibi-ates su cientl underthe inilueiicel of the,v s ring '291ml the core 9, the end ofthevcfeldl'iing,y 'enci1', where it isnearest the `work and' drawn, swingsalong ai curve of which the ivot 13 is the een fr. 4This action somewhatinterferes withv the'. be'st 'vveldin'gy xe'si'ili'.f'.V Myconstructionshown in Fi: 8 and' 9' overcomes this diculty'. thel weldingpencil isl scheld va'i'id maiiip iilatedv that it approaches thev work`or r`etra mm the wo'rkiii i straightv une, 'rm-S.

result is block which carries the clip member 20 and 22 withinthetube675 by pinning; it' asin.- dicated at 68. or' by brazing it into thetubey andi 9. In Figs. .11 naar,

the pencil are:- pivot'13': The

rom' whichI the a'rc is.l

by mounting thel or securing it in any other suitable ma'nner. The tube67 is adapted to slide freely within the tubular housing A69 which formsan extensioiiof the bracket 14". The lu 66` is rovided with ea'rs70between w 'ic the en `71 ofthe lever 12 is pivoted loosely, Y

the hole' in the lever 12 being elongated to givethe `pivot free lay.The lever` 12l is'v pivotedat 1'3 in the vracket 14;".` The housmg 69 iso n as 'showns at 72.*for the ure' ose of giving the lever 12* freeplayw ere it enters the housingand also for the, pur# pose of allowin accessto the'binding nut 7 3 lfor the purpose also of allowing the' lever rfreedom 'of action. The ii'exible connection 13'* is vsoldered at oneend' to one be ofthe ears 73 of the` plug 66 andthe other The currentthat creates the arc end is secured as shownfin Fig.' Wunder 14 r thepurpose ofcarryiiig4 lgs'. 1, 3, 4, 5 and 6 is -shown lin section` inthis 8. The handle 1 isA secured tothe vspool 10% This'spool includesthe tubular portion and the bottom a Bange 10 both being composedrpreferably of brass.4

The topv ldan or iron; an secured-to the bottom. flange are'proyidedtofore described and allow a feecirculalio' iis

thezplate 74v which is'sc'r'ewed toibo" bracket fr th i kttoui 'imaintient. om e rac e Y epenci carrying.`c ips.'

In other respects, the construction` iswthew same ae'that in Fig. 1 andthe constructionl vshown -in F' '.S the' 815061151"r iron flange 4.These aii'ges` l with the cut-outportions here'. f

3 is preferably made of` steel' l tion of air within the handle l1 ltion where the force of the solenoid core in this figure thereby keepingitfairly cool and .c omfortableto the l. -Secured -to. the topi-lange Sare the two blocks 47a and 4:7@ upon'th'etop ofwhich ismunted the buzzer50a'.` kThe play of the as'that in F igl and amounts to perhaps an`inch. The play of vthe other ed'oif the levver 12, namely the end71amounts to aboutl half that amount. This proportionis found mosteffective forthe regulation of the are. In Fig. 8 the core 9g 'isshownincontact with the contact point 53, the lever being in the extremeposition. lVhen the circuit of the solenoid is closed however, the coreis instantly brought up to its proper posithe tension of the spring 29a.he operation of the construction in this figure 1s evident, the chiefdifference fromY other figures being lthat; the weldingv termi@ nalmeans or pencil moves ina straight line instead of in the arc of acircle.

In the'operation of wel ing, an operators hand is, as a rule unsteadyand he'is unable to prevent variations in the lengthA of the are due tothis unsteadiness.

and cutting,r down th 'current through the solenoid -coil which has theeff The various strengths of the coil and spring are so adjusted as toprovide a suitable compensation for this tendency.

When, through the operators unsteadiness`,.the welding terminal means,or pencil,` tends toward shortening the arc, al

greater current starts tonow through the' i thelsolenoid pull so thatthe spring 29 pulls the Welding terminal means delivers a constant losor pencil-correspondingly away from the Work. v

These variations take place between suoli narrow limitsthat forpractical purposes, the arc remains steady and uniform and flow ofmetall from the welding terminal means or pencil to the work therebyavoiding the porosity of the weld which otherwise might occur. `Havingthusv described Amy inventlom shouldL be understood thaty there mayAmodifications thereof be and variations therein is approximately thesame.

' ing said weldm balances means connected to terminal means it from thespirit of my -invention or excee ing -the scope of the appended claims.What I claim is: f l. An electric Welder comprising, with .means forsupplying electricity thereto and means Afor' operating the welder,welding terminal suppl ing electricity and operatively supporte andproviding an electrode, terminal 4means connected to said means forsupplying electricity and attachable to the work and-'providing anelectrode, means for movterminal means -to the work able terminal meansis elecwithout departin when said attac means connected to means fortric'allyconnected tofthe work, and means v.

for moving said welding terminal means away from the work. j i 2. Anelectric welder, comprising, with electricity thereto and the welder,welding terminal means connected to said means for supplying electricityand operatively supported and providing an electrode, terminal meansconnected to said means for supplying elect city and attachable tothe'and providing an electrode, means for movi ing said weldm terminal meansto the Work whcnsaid attac able terminal means is electrically connectedto the work, :and spring actuated meansfor moving said welding terminalmeans away from the work.

3. An electric Welder com'prising, with means forv supplying electricitythereto and means for operating the Welder,l welding terminal meansconnected to said' means foi supplying electricity and operativelysupported and providing an electrode, terminal means connected to'saidmeans for supplying electricity and attachableto thework and providingan electrode, means for moving saidV welding terminal means to-the .whensaid attachable terminal means.

work is electrically connected to thework, means for vmoving saidWelding terminal means away from the work, :and means for compensatingthe movement of said terminal-means to and away from the Work. Anelectric Welder comprising, with supplying electricity ported andproviding said means for supplying electricity and attachable to thework and providing an electrode, means for moving said welding terminal`means to the `work when said i-s electrically connected tothe work;spring actuated means away from the work, an

means for compensating. theV movement of said-weldingterminal means rtoand away from the -workv f' welding attachable terminal means for movingsaid- Welding an electrode, terminal l 5. An electric Welder comprising,with connected to said means forsupply' elc-v means for operating thewelder,wel ing tertricity and' attachable to the work :all pro- .v

minal means com of conductive fusible material electrically .connectedand operatively supported for vroviding an electrode, electricallyconnected terminal means attachable to the work and providing anelectrode, electrically energized means operatively arranged for movingsaid Weldingl terminall means to the work when said at-4 tachableterminal meansA selectrically 'com A,netted to the work, and means'A formoving 'saidwelding terminal meansaW-ay from the means attachable to theWork and providactuated means for moving said We ing an electrode,electrically energized means! o iv'ely arranged forA moving Said Welingiterminal lmeans to the work when said attachable terminal means iselec.- 'trically connected to the work, and spring terninal means awayfrom 'the work.

7. `An electric Welder comprising, with means for operating the Welder,welding terminal means composed of conductlve fusible material andelectrically connected and operatively supported for providing anelectrede, electrically connected terminal. means -attachable to the'Work and provlding an electrode, electrically energized means op leratively arranged for moving said welding terminal means to the Workwhen said attachable terminal means is electrically connected to thework, means for moving said- Wel'd'ing --terminal means away from thework, and means for compensating the movement of said Weldingterminalmeans to and away from the Work.

8.A An lectric Welder comprising, With means for` operating the.VWelder, welding terminal means composed of., conductive fusible materialand electrically connected and operatively supported for providing anelectrode, electrically energized means opera tively arranged for movingsaid Weldingl terminal means to the work when said at.

' i tachable terminal means is electrically iconnected to the Work,spring actuated means for moving said Welding terminal means away fromthe work', and means orv compensating the movement-` of said' weldingterminal meansto and away from the Work.

'9. An electric Welder comprising, with means for supplying electricityythereto.

and means for operating the Welder, Welding terminal means of conductivefusible material connected to said means for suplying electricityandoperatively supported or providing an electrode, terminal meansproviding anelectrode, termina ding - 12. An electric Welder comprlsing,means for supplying electricity thereto and; means for operating theWelder, welding."

viding an electrode solenoid means operatlvelyarranged and connected formovin said Welding terminal means to the wor when said attachableterminal 'meansiselectrically connected tothe work, and means for movingsaid. welding terminal means away from the work.

,10. An electric Welder comprising, with means for supplying electricitythereto and means .for operating the Welder, welding terminal means ofconductive fusible material connected to said lmeans vfor supplyingelectricity and operatively supported for means con nected toV saidvmeans for supplying electricity, and attachable-to the Work and4providing an electrode solenoid. means operatively arranged andconnected for movin said Welding terminal means to the wr vwhen saidattachable terminal means is electrically connected to the work, andring actuated means vfor moving saidv we ding terminal means away fromthe work.

, 11.v An Aelectric ,Welder comprising, With means for supplyingelectricit .thereto and means for operating the we der, Welding terminalmeans of conductive fusible ma terial'connected to said means forsupplying electricity and operably supported'for providin y anelectrode, terminal Ameans vconnected to vsaid means for supplyingelec-4 tricity andattachable to the work and proi vidin anelectrode,solenoid means Voper ative y arranged and connected for moving saidWelding terminal means to the Work when said attachable terminal meansis elec'- vtrically connected to the Work, means for moving said weldingterminal means away from the Work, and means for compensating themovement of saidweldin terminal means Vto and away from the wor terminalmeans of conductive fusible material connected to said means forsupplying electricity and operably supported for pro- 'viding anelectrode, terminal means connected to 'said means for supplying elec,tricity and attachable to the work-and providing an electrode, solenoidmeansoper-v atively arranged and connected for morlng said Weldingterminal `means to the Work when said attachable terminal'means iselectrically connected to the work, spring actuated means for movingsaid welding ter. minal means away fromv the Work, 4and means forcompensating the movementv of said Welding terminal means to and awaythe work."1 .l

13. An electric Welder comprising, with means for supplying electricitthereto and means. ferH enemies the 'fw der.- welding;

' plun er, means for moving said Welding t-erterminal means ofconductive fusible material connected to said means lor supplyingelectricity and operably supported` for providing an electrode, terminalmeans con-- mina meansawy from the work, and means for compensating themovement of said Welding terminal lmeans to' and away' from the work.

14. An electric Welder comprising, with means for supplying electricitythereto and means for operating the Welder,welding`- terminal means 'of'conductive fusible material connected to said means vforsupplyingelectricity and operatively supported for providing anelectrode, termlnal means .connected to said means for supplying ele:-l

tricity and attachable to the work and providing anelectrode, solenoidmeans operatively arranged and connected for moving said Weldingterminal means to the work When said attachable terminal means iselectrically connected to the work, said solenoid means comprisingaplunger having airseeping l ing suggish operation 'of the IpIunger,spring-actuated means for vmoving said welding-terminal means away fromthe Work, and meansfor compensating the movelment of said Weldingterminal means to and away from the Work.v

15j. An electric Welder comprising, With means for supplying electricitythereto, a hollow cylindrical handle, solenoid means arranged in saidhandle and comprising a plunger movable in a chamber in said handle andoperatively attached to the solenoid core, said core having pivotallyattached to the end thereof opposite Vto said plunger, an arm carryingat an end thereofl opposite to said pivotal attachment of the arm tosaid core a welding terminal member,

and said arm being provided with a transversely extending heel, abracket secured at an end to said handle and pivotally attached at theother end thereof tosaid arm and provided with a spring operativelyconnected to said heel, the tendency of said spring being to draw saidheel of said arm towards said bracket, means for regulating saidtendency of said spring, said bracket being in electric' connection withsaid means for supplying electricity and -com` municating currenttherefrom to said arm and thereby to said Welding terminal member,terminal means connected to said means for supplying'electricity andattachable to means appurtenant thereto for caus-` the work forestablishin a shunt current to the solenoid coil, and means forcontrolling the supplyof electricity to said bracket and to: saidattachable terminal means.v n l .16. An 'electric Welder comprising,with means vfor,supplyingelectricity thereto, a

hollow ",cylindrical handle,` solenoid means varranged in said handleand comprising a sluggishly movable plunger operating in a chamber insaid handle and operatively attached to the solenoid cere, said corehaving pivotally attached to the end thereof opposite to said plunger-an arm carrying by clip means at an end thereof opposite to saidpivotal attachment of the arm to said core a welding terminal member,said arm being provided with a transversely extending heel,a,bracketsecured at an end to said handle and pivotally attached at the other endthereof to said arm and provided With a spring operatively connected tosaid heel, the tendency of` said spring being to draw said heel towardssaid arm, means for regulating said tendency of said` spring, said'bracket being in electric connection with said means for supplyingelectricity and communicating current therefrom to said arm and ltherebyto said Welding terminal member, terminal means connected to said meansA:for supplying electricity and attachable to the work .for establishinga shunt current to the solenoid coil, and means for controlling thesupply' of electricity to saidv bracket and to said attachable terminalmeans. v

,17. An electric Welder comprising, with means forl supplyingelectricity thereto and means -for operating the Welder, weldingterminal means connected to said means for supplying electricity andoperatively supported and providing an electrode, terminal meansconnected to said means for supplyingvelectricity and attachable to 'theWork and providing an electrode, means for moving said Welding terminalmeans to the f Work when said attachable terminal means is electricallyconnected to the work, means for moving said welding terminal means awayfrom the Work, and warning means normally inoperative and arranged tobecome operative by too near approach of said Welding terminal means tothe work.

18. An electric Welder comprising, with actuated means forv moving saidwel .terminal means away from the `work, an

i Y warning means normally inoperative and y.-wveldf termina 19.

electrically connected and arranged to b e- .come operative by too nearapproach of sald means tothe work. electric welder comprising, with@means for supplying electricit .thereto and f'fmeans for operating thewe der, welding terminal means connected to said means lfor`v suppl ingelectricity and operatively supporte and providing an electrode,terminal means connected to said means for supply- .ingelectricity andattachable to the work and providing .an electrode, means formoving saidwelding terminal means to the: .work when said attachable terminalgmeansjiselectrically connected to the work, means for moving` saidweldingterminal -means away from the work, and audible warning means normallyinoperative end arrang'ed to become operative by too'near approach ofsad welding terminal means to the work.

'f 20-. Anele`ctric Welder comprising, with means for supplyingelectrici thereto and means .for operating the Iwe der, weldmg terminalconnected ,tosaidl means for suppl .electricity andv o vratively sup-P01-ted -lnal means connected and providing an e ectrode, termito saidymeans for supporting' electricity g and attachable' to the work andproviding an-electrode, means for moviggsaidwelding terminal 'means tothe fro.;

when said attachable terminal means .iselectricallyconnected to thework, and audiblewarning means comprising a buzzer normally inoperativeandl electrically" connected and arranged to become operative, by toonear ap roach of said welding nal means to-t e work.

21. In an arc weldin system, in combina? tion, a welding penci subjectto the control of an operators hand and adapted to be brought intocontact'with a piece of work,

. a compensating lever carrying said pencil to draw said ypencil awafrom the work, an

' oerators handle, sai

apted to approach the pencil to the work,-

i 'y a signal mounted upon said combination f brought too close and -avlimiting contact mounted upon saidcombinationy adapted to connectelectrically with said lever when the combination'ls to the work toinform the operator thereof. i

. 22. In an arc welding system, in comibination, a welding pencil,subject tothe control of an operators hand and adapted to'be broughtinto contact with a piece of work, a compensating levercarryin said pencl, a resilient device to draw sai -pen- .away from the work, anoperators handle associated .with an 'electroresponsive device toappjroael""the pencil to the work,

a signal. niountedipon said combination operators handle and a contactmounted upon said combination adapted to connect electrically withsaidlever when the .combination is brought too close to the work to-informthe operator thereof, said contact. being resiliently-f-mounted so Aasnot to interfere withilo the motion of said lever.

23. In an electric-arc welding system, a`

freely movable welding tool adapted to be heldand supported y.by theoperator during the welding operation and having'a handle 75 adapted tobe grasped by the hand of the operator whereby the operatorv is enabledto support and manipulate the welding tool, sal' welding tol having amovable W eldin'g\l electrode, and an electro-responsive device 80 insaid tool having a movable sive 'to fluctuations inthe wel ng current tomaintain the welding arc st aneven heat.

24.. In .an arc welding system, in combination, a welding pencil subjectto thecontrol of an operators hand A'and adapted to be brought intocontact with a. piece of work, a compensating lever carryinsad pencil, aresillent deviceoto'draw sai 'pencil awa from the work, an operatorshandle adapte (part respon- -to be ywielded manually,-carrying an,electroresponsive device. to approach the pencil to the work', saidelecto-responsivedevice beinglocated'n a vshunt around the are 25. In anarc welding system, in combination, a welding pencil subject to thecontrol of an operators hand. and adapted tobe bro ht into contact with`a ieee of work, a resilient deviceto draw'said pencilaway r from thework and an joperators 'v handle adapted to be wielded manually car ingan electro-responsive .device tocont'rol t e position of the pencil withrelation tothe work,

lsaid electro-responsive device being located ina shunt around the arc.

26. Inanarc welding system, in combination, a welding pencil subject tothe control of an .o rators hand and adapted to be ht intoicontact witha piece of work, a resilient device and an operators handle adapted to-be wielded'manually, carrying an electro-responsive device to controlthe. position ofthe pencil with relation to the work, an operatorsswitchmounted upon said combination adapted to be closed' by' 'an operatorshand when'graspin said handle said electro-responsive devicec eing tw'opoints, one'adapted to ber closedby said operators lswitch andthe othervincluding located I in a shunt around the arc normallyv open at aterminal ilexiblynnected to said c'ombi- V nation and adapted'tobebrought into con-4 tact with the work. i 27. .In an arc welding system,vin combination, a welding pencil subject to the 'control v i of anoperators hand'and adaptedjto brought into contact with a piece of wieg,

a resilient device, an operators handle ca ing an electro-responsivedevice such as a solenoid coil to control the position of the' pencilwith relation to the Work, saidy electroing an electro-responsive`device to. control responsive device being located in a shuntaround-the arc, and an audible signal having electro-responsiveoperating means located in shunt of said 'solenoid coil.

28. In an arc weldlng system, in combina-v` tion, a welding pencilsubject to the control of an operators hand and adapted to be -broughtinto contactwith a piece of Work,

a resilient device, an operators handle carrythe position of the pencilwith relation to they Work, said electro-responsive devioebing located'in a shunt around the arc, said resilient device and' saidelectro-responsivc device being so ladjusted toeach other and to thecurrent :as to maintain substantially a steady arc. v

29. In an arc Welding system, in combination, a welding pencil subject'to the control of an operators hand' and adapted to be,

broughtv into-contact with a p iece of work,

a resilient device, and an operators handle, consistingof a hollow7cylinder surrounding an electro-responsive device to control' theposition of the pencil with relation to the work.

30. Inan arc'welding system, in combinaL tion,- a welding pencil'subjectto the control of an operators 'hand and adapted to be brought intocontact witha piece of work,

a resilient device to draw said pencil away from the work. and anoperators 'handle consisting of a hollow cylinder surrounding anelectroresponsive device to approach the pencil to the work. 31. In anarc welding system, in combination", a welding pencil subject to thecontrol I of an operators hand and .adapted to be brought into contactwith a piece of work, a

` compensating lever carrying said pencil, a

resilient device to draw said pencil away from the work. an operatorshandle consisting of a hollow cylinder surrounding an electro-responsivedevice to approach thc pencil to the work and an'audible signal mountedupon said combination.

32. In au arc welding system, in combination, ya welding pencil subjectto the control of an operators hand and adapted to be brought intocontact withy a piece of work. avcompensating lever carrying saidpencil. a resilient device to draw saidpencil away from the work, anoperators handle A consisting of a hollow cylinder surrounding anelectro-responsive device to approach the pencil yto the work, anaudible signal mounted upon said combination, and an operators switchmounted upon said handle.

33. In an are Welding system, in combination, a welding pencil suject'to the control of an operators hand and adapted to be brought intocontact with a piece of Work,

a compensating lever carrying said pencil, a signal mounted upon saidcombination, op-

erated by a limiting contact mounted upon said combination adapted toelectrically connect with said lever when the combination is broughttooclose to the work to inform the operator thereof.

34. In an arc welding system, in combination, a .welding pencilsubjectto the coni trol of an operators hand and adapted to be broughtinto contact with-a piece of work, a compensating lever carrying saidpencil, an.V audible signal mounted upon said combination operated by alimiting vContact; mounted upon said combination adapted to connectelectrically with said lever when the combination is brought too .closeto the Work to inform the operator thereof.I

35. In an arc weldin bination, a welding penci subject to the control ofan operatorshand and adapted to system, in coni-v be brought intocontact with a piece of Work,

a compensating lever car ing said encil, -an audible signal-mounte uponsai combination, operated by a. limiting vcontact mounted upon saidcombination adapted to connect .electrically with'said lever when thecombination isvbroughtI too close to the work to inform the operatorthereof, said contact beingresiliently mountedsoas not to interfere wlththe motion ofsaid lever.

36. In an arc Welding system, in comblnation, a welding pencil su jectto the control ofan operators hand and adapted to be 'brought intocontact with a piece of work,"

a compensating lever carrying said pencil, an operators handleassociated with an electro-responsive device such as a solenoid coil. anaudible signal mounted upon said combination `operated-by a limitinco'n-A tact mounted -upon said .combination adapted to connectelectrically with said lever when the combination is brought too closeto the work to inform the operator thereof, said Contact beingresiliently mounted so as not to interfere with the motion of saidlever.

37. In an electric arc welding system, a handle, a movable weldingdevice combined withan audible signal and a limiting stop'to cause theoperation of said signal when said Welding device drifts beyond therange of position provided with relation to said handle, I

38. In an arc welding system, in combination, a welding pencil subjectto the control of an operators hand composed of Welding metal andadapted to be brought into contact with a piece of work, a spring clipadapted to frictio'nally hold said pencil at one end, on one side of itsfulcrum, and an electrically influenced magnetic device associated with'the other endof said compenlever upon the other side of said'- y 'cl-'umlocated atl a substantiallyv greater distance from said fulcrumthan'said pencil, and a resilient device to approach the pencil tothework. f v' '39. In en arc welding system, in combination, a weldingpencil subject to the I control of an operators handl composed of saidwelding metal and adapted to be brought into contact with a iece ofwork, a spring clip adapted to frictlonally hold said pencil, acompensating lever carrying at one end encil on one side of its fulcrumand an e ectrically influenced magnetic device vassociated with theotherlend of said compensating lever upon the other side ofrsaid fulcrumlocated at a substantially greater.

4'distance from said ulcrum than said pencil to approach the pencil tothe work, .and a ltension spring to draw said pencil away from thework.

' 40. In an. arc welding system, in combination, a welding pencilsubject to the control brought into contactwith a piece of Work,A

'l approach the pencil tothe work, and a resilof an operators hand andadapted to be brought' into contact with a plece of work,

V.a resllient device, means to adjust saidresilient device, and anoperators handle carry# ing an electro-responsive device to control theposition of the pencilwith relation to the work. 1

41. In an arc welding system, in combinay tion, a welding pencil subjectto the control of an operators hand and adaptedto` be brought intocontact with a piece of work,

a compensating lever carrying lsaid pencilv and an electrically1 vice toapproach t e .a 4'resilient device to influenced magnetic deraw saidpencil afway from the work.

l 42.` In an arc welding'system, vin" combination, a welding pencilsubject to the control of an operators hand and .adapted to be acompensating jlever carrying said pencil, an elect'rically'rhfluencedmagnetic device' to ient device to draw said pencil away from thework,'said resilient device exerting" a pull upon said compensatinglever at a point close to its fulcrum. Y' V 43. In an arc weldin system,in combination, a weldingH nci subject to the control of an operatorshand and adapted to 'v be brought into contact .with a piece of work, acompensating levercarrying at. one end said pencil on one side of itsfulcrumv and an electricall 'influenced magnetic de- 'vice associatedwlth the other end of said compensating leverupon the other side of saidfulcrum located at a substantially'tgreater distance from said fulcrumthan sai penlcil to approach the pencil to the work and a resilientdevice to ,draw said pencil away from the work.l 44. In an arc weldingsystem, in combinancil to the work, and"` tion, a welding pencil subjectto the controlof an operators hand anda'dapted'to be brought intoconactwith a piece f work a com nsating ever carryin sai nc' andarilectrically-influenced gms eti? device', .a resilient device, anoperato s handle, a bracket mounted thereon, said operators handlesurrounding a solenoid coil adapted to 'attract said magnetic device tocontrol the position of thepencil with relation-t0 thewoxk. p

45. In an arc welding system, incombination, a welding pencil subject tothe control of an; operators hand and adapted to be broughtintocontactwith apiece of work, a compensating Ylever carrying said pencil andanelectrically infiuenced magnetic' de` vice to 'approach the pencil tothe work, a

resilient device tol draw said pencil awa from the '-work, and anI'operatos hand e consisting of a hollow cylinder surrounding anelectro-responsive device adapted A*to* attract said magnetic device tocontrol the posilion of the'pencil with-relation to the wor In an arewelding system, in combination, a welding pencil subject to the controli of an operators hand and adapted to' be brought into contact with apiece of work, a spring clip. adapted to frictlonally and resiliently hod lever carrying said clip onv one side of its fulcrum and anelectricall influencedma'gnetic device associated with the Aother end ofsaid compensating lever to approach the pencil to the work,; a resilientdevice to draw said pencil away from the work, an operators handle,carrying said fulcrum, said operators :handle surrounding a solenoidcoil adapted to attract said magnetic device to control the positionofthe pencil with relation to the work.

47. In anarc welding system, in combination', a'weldi'ng pencilsubject'to the control ofA an operators hand land adapted to be broughtinto contact with a piece of work,

.a scpring clip adaptedto frictionallyhold sai pencil at one end saidclion one side of its fulcrum and an electrica lyvinfluenced -magneticdeviceaociated with the other en of said'compensating lever, upon theother side of said fulcrum located at a substantially greater distancefrom said fulcrum thanv said pencil to approachl the pencil to the work,a resilient device to draw said pencil away from. the work, an.operators andle, a bracket mounted thereon carrying said' fulcrum,saidA operators handle surrounding asolenoid lcoil adapted to attractsaid magnetic device t0 control the position of, the pencil withrelation tothe work.,`

48.' In an arc welding system, in combines tion, a welding pencilAsubject to the controll 'of an operator-s hand and'adapted to' bebrought-into contact` with a piece of work,

a. s ringclip adapted to frictionally hold sai pencil, acompensating-lever carrying at one endsaid clip on one side of itsfulcrum and an electrically influenced magnetic device associated withthe other end of said compensating llever upon the other side of saidfulcrum to approach the pencil to the work, a resilient device to drawsaid pencil away from the work, an opera-tors handle, a bracket thereoncarrying saidv fulcrum,. said operators handleI surrounding a solenoidcoil adapted to attract said magnetic device to control the position ofthe pencil with relation to the work.

49. In an are welding system, in combi n nation, a welding pencilsubject to the con,

trol of a opcrators hand and adapted to be brought into contact with apiece of work, a spring clip adapted to l'rictionally hold said pencil,a compensating lever carryin' at one end said clip on one side of itsfgulcrum and an electrically influenced magnetic device associated withthe other end of said compensating lever upon the 'other side of saidfulcrum located at a sub- Y stantially greater distance from saidfulcrum to said pencil to approach -the pencil to the work, a resilientdevice to draw said pencil away from the work, an operators handle and abracket mounted thereon carrying said `fulcrum,

lsaid operators handle surrounding a solenoid coil adapted to attractsaid magneticv bination and adapted to be device to, control theposition of the pencil with relation to the work, and an operatorsswitch mounted upon said electro-respon-` sive device, said device being`located in a shunt around the are normally open at two points, oneadapted to be closed b said operators switch, and the other inc uding aterminal flexibly connected to'said combrought into contact with thework. f

50. In an arc-weldin system, in combination, a welding pencisubject tothe control of an operators liand and adapted to be broughtinto contactwith a piece of work, a spring clip adapted to frictionally hold saidpencil, a compensating lever caring a solenoid coil adapted to attractsaid magnetic device to control the position of the pencil with relationto the work and an operators switch mounted upon said electro-responsivedevice, said device being nation, a welding pencil. subject to thecontrol of an operators hand and adapted to be brought into contact witha piece of 4Work, a compensating lever carrying at one end said pencilon one side of its fulcrum and an electrically influenced magneticdevice associated with the other end of said compensating lever upon theother side of said fulcrum,` and a resilient device to draw said pencilaway from the work, said resilient device exerting a pull upon saidcompensating lever at a point close to its fulcrum. i

53. In an arc'welding system, in combination, -a welding pencil subjectto thecontrol of an operators hand andadapted to brought into contactwith a piece of work, a compensating lever carrying at one end saidpencil on one side of its'fulcrum and an electrically influencedmagnetic device associated withthe other end of saidcompensating leverupon the other side of said fulcrum located at a substantially greaterdistance from said fulcrum than said pencil, to approach the'pencil tothe work, a resilient device to draw said pencil away from the work,said resilient device exerting a ,pull upon said" compensating lever ata point close to its fulcrum, an operators handle and a bracket thereoncarrying said fiilcrum, said operators handle associated `with anelectro-responsive device adapted to attract said magnetic device to.control the po- 'sit-ion of the pencil with relation tothe work. l i54. In an arc welding system, in combination, a. welding pencilsubjecttothe ,control of an operators hand and adapted to be broughtinto contact with a piece ofV Work. and an electrically influencedmagnetic device to approach the pencil to the work, an operators handle,said'operators handle adapted to attract said magnetic device to controlthe position of the pencil with relation to the work and an operatorsswitch mounted upon said handle adapted to be trol of an operators handand adapted. to bina'tion, said audible signa-l having electrobe broughtinto contact with a -pieceof work, and an electrically influencedmagnetic device to approach the pencil to the work, and an operatorshande carryingan electro-responsive device adapted to attract saidmagnetic device to control the position of the pencil with relaticny tothe work and an o rators switch mounted upon -said hand e adapted to beclosed by an operators hand when grasping said handle, saidelectro-responsive device being located .in a

'shunt amtrndthe arc in acircuitnormally open and adapted to be Lclosedby said operators switch.

56. In an arc welding system, in combination, a Welding pencil subjectto the control of an operators hand land adapted to be brought intocontact with a piece of work and an electrically influenced magneticdevice to approach the pencil to the work, an operators handle carryingan electro-responsive device adapted to attract said magnetic devicetocontrol the position of the pencil with relation to the work and anoperators switch mounted upon said handle adapted to be closed by anoperators hand whent grasping said handle, said electro-responsivedevicebeing 'located in a shunt around the arc normally open at two points-one adapted to be closed by saidjoperators switch and theother'including a terminal flexibly connected lto saidcombination and.adapted to be brought into contact with the wor 57. In an arcvweldingsystem, in combination, a welding pencil' subject to the control of anoperators hand and adapted to be brought into contact with a piece ofworlc and an velectrically influenced magnetic device to approach thepencil to the work, an operators 4handle 'carrying an electro-responsivedeviceadapted to attract said magnetic device to control the position ofthe pencil with relation to the work, an audible signal mounted uponsaid combination. and an operators switch mountedj upon said handleadapted to be closed by an operators hand when grasping said handle,said electro-responsive device being .located in a shunt around the arcin a circuit normally open and adapted to be closed by said opcra'torsswitch, and said audible signal having electro-responsive operatingmeanslocated in shunt of said solenoid coil.

58. In an arc welding system, in combination, a welding pencil subjectto the control of an operators hand and adapted to be brought intocontact with a piece of work in order that an arc may be drawn, an op' jerators handle associated with an electro.-

responsive device adapted to attract said magnetic device to control theposition of the pencil with relation to the work, and an audible signalmounted upon said com'- responsive operating means located in shunt ofsaid electroresponsive" device.

59. In an arcwelding syem, in combination, a welding pencil subject tothecontrol of an operators'hand and adapted to be brought into contactwith a piece of work and an electrically influenced magnetic device, anoperators handle associated with an electro-responsive device to controltheposiuponfsaid combination adapted to.connectv tion of thepencil withrelation to the work and a si al mounted upon said combination opera by'La limiting contact mounted electrically with said. lever when thecombination is brought too close to the work to inform the operatorthereof.

60. In an arc welding system, in combination, a Welding pencil subject`to the control ofan voperators hand and dapted`to be brought intocontact with a piece of work and an electrically influenced magneticdevice, an operators handle associated with an electro-responsive deviceto control the position of the pencil with relation to the work .and anaudible signal mounted upon said combination operated by a limitingcontact. mounted upon said combination adapted to connect electricallywith said magnetic device when the combination is brought too close tothe work to inform the operator thereof.

61. In an arc welding system, in combination, a weldingpencil subject tothe control of an operators hand ,and adapted to be brought into contactwith a piece of work and an electrically influenced magnetic device, an,operators handle associated with anelectro-responsive device to controlthe position of the pencil with relation to the work and an audiblesignal mounted upon said combination operated by a limiting contactmounted upon said combination `adapted to connect electrically with saidmagnetic device when the combination is brought too close to the work toinform the operator thereof, said contact being resiliently mountedso asnot to linterfere with the motion of said lever.

62. In an arc weldingvsystern, in combination, a welding pencil subjectto the control of an .operators hand and adapted to be brought intocontact with a piece of work brought into Contact with a piece of work,a'.

'las

compensating lever carrying said pencil and an electricallyinfluencedlmagnetic device adapted to reciprocate sluggishly to approachthe pencilto the Work, a resilient device-to draw said pencil away fromthe Work -and an operators handle associated with an electro-responsivedevice adapted to attract said magnetic device to control the positionof the pencil with relation to the, work.

64. In an arc Welding'system, in. combina-` 4 tion, a Welding pencilsubject to 4the control of an operators hand and adapted to be broughtlinto contact with a. pieceof work, a compensating' lever carrying saidpencil on one side of its fulcrum and an electrically infiuenced.magnetic device adapted to re ci rocate sluggishly upon the othersideof sald fulcrumA to approach the pencil to the Work, a resilientdevice to draw said pencil away from the Work andan operators handleassociated with anV electro-responsive device adapted to attractsaidmagnetic device to control the position of the pencil with relation tothe Work. 65. In an arc Welding system, in comblnation` a welding pencilsubjectto the con-` trol of an operators hand vand adapted to.

' be brought into contact with a piece of. Work,

a. compensating levercarrying said pencil and adapted to reciprocatesluggishly.

66. In an arc Welding system, in combination, aV Welding pencil subjectto .the control of an operators hand and-adapted to be brought intocontact With a piece of Work. a spring clip adapted to frictionally andresiliently holdsaid pencil, a compensating lever 'carrying said Vpencil`on one side of its .fulg

. crum and an electrically influenced magnetic -device adapted toreciprocate sluggishly (to the Work.

67. In an arc Welding system, in combination, a Welding pencil subjectto the control of an operators hand and adapted to be brought intocontact with a piece of Work, a spring clip `adapted to frictionally andresiliently hold said pencil, a compensating lever carrying said pencil.on one side of its ,fulcrum and an electrically infiuenced -nation, aWelding pencil subject to the conmagnetic device adapted to reciprocatesluggishly upon the other side of saidfulcrum located at a.substantially greater distance from said fulcrum than said pencil toapproach the pencil to the work, a resilient de= vice to draw saidpencil'away from the work,

a'n operators handle carrying said ulcrum,

said operators handle associated with anV electro-responsive deviceadapted to attract said magnetic device to app-roach the pencil to thework and an operators switch mount- .ed upon said handle adapted to beclosed by an operators hand when gras-ping said handle.

68. In an' arc welding system, in combination, a Welding pencil subjectto the control'of an operators hand and adapted to be brought intocontact with a piece of Work,l an operators handle associated with anelectroresponsive device to control the position of the pencil withrelation to the Work, said electro-responsive device andhandle beingconcentrically mounted with free air passages between them with inletsand exit passageways for air cooling purposes. y 69. In an arc weldingsystennin combination, a Welding pencil subject to the control of anoperators hand and adapted to be brought into contact with a piece ofWork,

a compensating lever for causing the movean operators handle associatedwith an elec-.

tro-responsive device to control the position of the pencil `withrelation to the work and means to cause said welding pencil to vibrate-in a substantially straight line to and from.

the Work and guiding devices for said ele-' nient to guide it to andfrom the Work.

71. In an arc Welding system, in Combination, a Welding pencil subjectto the control of an o-perators hand and adapted to be brought intocontact with a piece of work, an operators handle associated with anelectroresponsive device to controlV the position of the pencil withrelation to the work. andmeans to render the motion of said pencilsluggish. l

72. In an arc welding system, in combi'- nation, a welding pencilsubject to the control of an operators hand and adapted to be broughtinto contact with .a piece of work, an operators handle associated withan electro-responsive device to control the position of the pencil'withrelation to the work, and means to render the motion of said pencilsluggish consistino of a dash pot'.

73. n an arc Welding system, in combitrol of an operators hand andadapted to be brought into contact with a iece of work, an operatorshandle associate with an electro-responsive device to control theposition of the pencil with relation to the work and means to render themotion of said pencil sluggish consisting of a dash pot device having aiston. 4. n an arc welding system, in combination, a weldingv pencil'subject to the control of an operators hand and adapted to be broughtinto contact with a piece of work, an operator-s handle associated withan electro-responsive device to ,control the position of the Apencilwith relation to the work and means to render the motion of said vpencilsluggish consisting of a dash pot device having a piston of selflubricating substance.

5. n a arc welding system, in combi` nation, a welding pencil subject tothe control of an operator brought into contact with a piece of work, acompensatirglever carrying said pencil adapted to reciprocatesluggishly, a magnetic core, an operators' handle associated with anelectro-responsive device to control the position "of the pencil withrelation to the work and means. to render the motion of' said pencilsluggish consisting of a dash pot device having a piston of carbonlinked :to

said core 76, In anarc welding system, in combination, a welding pencilsubject to the -control of an operators hand and adaptedto be broughtinto contact with a piece of work, a

4compensatin lever carrying said pencil and an electrica an operatorsndle associated with an electro-responsive device to control theposition of the pencil with relation to the work and .meansto render themotion of said pencil sluggish consisting of a dash pot device hav-4ving a piston of carbon linked to said compensating lever. Y

77. In an are welding system, in combination, a welding pencil subjectto the control of an operators hand and adapted to be brought intocontact with a piece of work a compensatin lever carrying at one en saidpencil am? an electrically magnetic de'- vice, an operators handleassociated with anelectro-responsive device to control the position ofthe pencil with relation to the work and means to render the motion ofsaid pencil sluggish and consistin of a dash pot and device having apiston o carbon linked to said compensating lever within the spool ofsaid electro-res onsive device.

78. In an arc we ding system, in combination, a welding ,pencil subjectto the control of an o rators hand and adapted to be brought intocontact with a piece of work, an operators handle aociated with anelectro-responsive device to control the position of the ncil withrelation to the work and magnetic flanges for the spool of said elecshand and adapted to be A y influenced magnetic device,

tro-responsive device, the ianges surrounding the movable core beingspaced therefrom to prevent magnetic interference with its action.

.79. In an electric arc welding system, a handle, a movable Weldingdevice combined with an audible signal and a limitin stop to cause theoperation of said signal w en said weldingdevice drifts out of positionwith relation to said handle.

80. In an arc weldingsystem, in combination, a Welding pencil subject tothe control of an operators-hand and adapted to be brought into contactwith a piece of Work to establish an arc, a compensating lever, mountingsaid pencil, electro-responsive means to inliuence the operation of saidlever in its relation to the arc and a resilient device opposing saidelectro-responsive device an electrically influenced magnetic deviceadapted to actuate said lever to approach the pencil to the work, and atension spring opposing said magnetic device to draw sald pencil awayfrom the work.

82. In an electric arc welding system, a

freely movable handle adapted to be grasped by the.hand of an operatorand carrying a movable welding electrode, an electro-responsive devicemounted thereon having a movable part to maintain the welding arc at aneven heat and means to minimize the range of movement of said electrodewith relation to that of the movable part of said electro-responsivedevice.`

83. In an electric arc 'welding system, a freely movable handle adaptedto be grasped bythe hand of an operator and carrying a movable weldingelectrode, an electro-responsive device mounted thereon having a movablepart to maintain the welding arc at an even heat and resilient means toevenly oppose the influence of said electro-responsive device regardlessof the relative positioxs of said movable part and of said electro e.

ERNST WOLTMANN.

Witnesses:

. Fm-:Damon T. Sass,

H. D. PaNNar.

